function normal		(shader, t_base, t_second, t_detail)
	shader:begin	("combine_1", "combine_volumetric")
			: fog		(false)
			: zb 		(false,false)
			: blend		(true,blend.one,blend.one)
--			: aref 		(true,0)	--	enable to save bandwith?
			: sorting	(2, false)

	shader:dx10texture	("s_vollight", 	"$user$generic2")
	shader:dx10texture 	("s_tonemap", 	"$user$tonemap")
	shader:dx10texture 	("noise_tex", 	"fx\\blue_noise")

	shader:dx10texture 	("s_position", 	"$user$position")

	shader:dx10sampler	("smp_linear")
	shader:dx10sampler	("smp_nofilter")
end